pub fn diff_lines(before: &str, after: &str) -> Vec<DiffLine>Expand description
Compute a line diff between two texts.
Examples found in repository?
examples/parity.rs (line 14)
9fn main() {
10 let mut args = std::env::args().skip(1);
11 let before = args.next().unwrap_or_default();
12 let after = args.next().unwrap_or_default();
13
14 let lines = diff_lines(&before, &after);
15 let stats = diff_stats(&lines);
16
17 // Hand-rolled JSON: serde would pull `serde-wasm-bindgen` into a crate whose
18 // whole point is having no dependencies, and the shape is fixed anyway.
19 print!("{{\"added\":{},\"removed\":{},\"identical\":{},\"lines\":[", stats.added, stats.removed, stats.identical);
20 for (i, line) in lines.iter().enumerate() {
21 if i > 0 {
22 print!(",");
23 }
24 print!(
25 "{{\"kind\":{},\"text\":{},\"oldLine\":{},\"newLine\":{}}}",
26 json_str(line.kind.as_str()),
27 json_str(&line.text),
28 line.old_line.map(|n| n.to_string()).unwrap_or_else(|| "null".into()),
29 line.new_line.map(|n| n.to_string()).unwrap_or_else(|| "null".into()),
30 );
31 }
32 println!("]}}");
33}